Naslov
Oxidative Stability of Vegetable Oils with Added Antioxidants

Autori
Moslavac, Tihomir ; Perl Pirički, Antonija ; Volmut, Katica ; Benčić, Đani

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstract Book Lipids, Fats and Oils · From Knowledge to Aapplication · 7th Euro Fed Lipid Congress / Gunther Daum - Graz : Graz University of Technology, 2009, 287-287

Skup
Fats and Oils · From Knowledge to Aapplication · 7th Euro Fed Lipid Congress

Mjesto i datum
Graz, Austrija, 18.10.2009. - 21.10.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
vegetable oils; oxidative stability; antioxidants

Sažetak
Synthetic antioxidants are less expensive than natural antioxidants. It is generally accepted that natural antioxidants are more potent, more efficient and safer than synthetic antioxidants. The oxidative stability of different vegetable oil blends, with and without added synthetic and natural antioxidants, was evaluated using the Rancimat test conditions. Blends of sunflower oil (SUN) (50%) and other oil varieties (50%) studied were high-oleic sunflower (HOSUN), corn (COR), olive (OL), almond (ALM) and grape seed (GS). In this study, the antioxidant effect of propyl gallate (0, 01%) in blends of sunflower oil and other oil (50:50) was compared to that of natural rosemary extract Oxy'Less®.CS and StabilEnhance® OSR (0.1%, 0.3%). The oxidation was induced and measured using Rancimat (sample 3.0 g, temperature 120 oC, airflow 9 L/h). The following results are expressed as induction period (IP) and protection factors (PF). Stability is proportional to the induction period. Natural antioxidants (rosemary extract) increase the stability of blends of sunflower oil and other oil (50:50) at all dosages tested slightly more efficiently than propyl gallate. The results showed the highest antioxidant activity, measured as an induction period, with rosemary extract Oxy'Less®.CS (0.3%), comparable to propyl gallate and StabilEnhance® OSR activity in all blend oils.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA